From the Publisher's Website:
A standalone D&D adventure for 4th-level characters.
Stonefang Pass wends its way through the mountains of the Stonemarch, home to brutal tribes of orcs. The time has come to clear the pass and gain a foothold, so that it can be used for trade between the town of Winterhaven and the lands beyond the mountains. Brave adventurers are needed to rid the pass of monsters and liberate Stonefang Keep from the orcs. Who’s up for the challenge?
This standalone D&D adventure is designed for 4th-level characters and can be easily inserted into any D&D campaign.